DLS Svenska AB A8 Series Crossovers / filters on A7, Highpass filter on front channels, Channel

Page 8

ULTIMATE A7

FRONT SPEAKERS

 

 

HP-filter

SIGNAL INPUTS

HP-filter

LP-filter

REAR SPEAKERS

+LEFT- +RIGHT-

LEVEL

 

 

IN

FRONT REAR

LEVEL +LEFT- +RIGHT-

240

 

IN

 

IN

 

 

 

 

3,5V

 

 

 

LEFT RIGHT LEFT RIGHT

240

2

 

3,5V

 

7V 0,2V

80

400

 

 

80 400

0,3

4

7V 0,2V

 

 

Hz

OUT

 

 

 

 

 

 

Hz OUT

kHz

OUT

 

 

 

x20 change

 

 

 

 

 

 

 

 

x10 change

 

 

 

by bottom switch

 

 

 

 

 

 

 

by bottom switch

 

 

 

 

 

 

 

 

 

Crossovers / filters on A7

 

Lowpass filter on rear channels

DLS A7 amplifier include highpass filter (HP), lowpass filter (LP). On the two front channels the HP- filter can be switched between two different frequency ranges, likewise for the LP-filter on the rear channels.

Highpass filter on front channels

LP-filter

IN 2

0,3 4

kHz OUT

x10 change

by bottom switch

The slope of the HP-filter is 12 dB / octave.

The filter can be switched off if you want to run the amplifier in full range mode. Or use as a HP-filter for tweeters if you want to run

a2-way speaker system with active crossover. The HP x20 switch under the bot- tom plate changes the filt- ers frequency range from the normal 80-400 Hz to 1600 - 8000 Hz. A normal setting is 3-5 kHz.

If you run a 3-way system on the amplifier you can use this filter for active cross- over between midbass and midrange speakers, a typical setting is 400 Hz.

HP-filter

IN

240

80 400

Hz OUT

x20 change

by bottom switch

The LP-filter on the rear channels is used when you run a 2-way or 3-way speaker system with active crossover. It will allow low frequencies only and blocks higher frequencies. The filter can be switched in and out.

The normal frequency range is from 0,3 to 4 kHz. With the LP x10 switch, under the bottom plate, you can change the filter frequency range from the normal to 3 - 40 kHz. A normal x-over setting is 3-4 kHz when used for active crossover in a 2-way sys- tem.

If you run a 3-way system on the amplifier you can use this filter for active crossover between midbass and midrange speakers. A typical setting is 400 Hz.

 

 

 

 

 

Input

 

Amplifier front

 

Input

 

 

 

Front

Rear

 

 

Sub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 1 Front

 

 

 

 

 

 

 

 

Rear

Sub

input

 

 

 

 

 

 

 

 

 

separate

 

 

 

 

 

input to

 

 

 

 

 

 

 

 

input to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HP

 

 

 

rear & sub

 

 

 

 

 

 

sub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 1

 

 

Sub input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 10

 

x 20

 

 

 

 

 

 

 

 

 

 

from rear

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

 

Amplifier front

 

Input

 

 

Front

Rear

 

 

Sub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 1 Front

 

 

 

 

 

 

 

 

Rear

Sub input

 

 

 

 

 

 

 

 

 

separate

 

 

 

input to

 

 

 

 

 

 

 

 

input to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HP

 

rear & sub

 

 

 

 

 

 

sub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 1

 

 

Sub input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x 10

 

x 20

 

 

 

 

 

 

 

 

 

 

from rear

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LP x10 swith under the bottom plate

Highpass filter on rear channels

Filters on sub

Lowpass

 

channel

90

 

50 125

 

Hz

The sub channel is made only for subwoofer use and has a variable LP-filter that can be switched on- off. A normal setting for the LP-filter is 60-80 Hz.

This HP-filteris normally used as a high pass filter blocking very low frequencies from reaching the speakers. It is mostly used at say 80 Hz to protect small speakers

( like 6 inch and smaller ) from deep bass.

The slope of the HP-filter is 12 dB / octave.

The filter can be switched off if you want to run the amplifier in full range mode.

HP-filter

IN

240

80 400

Hz OUT

8

Image 8
Contents Contents WelcomeAmplifier location Before you begin to install Disconnect BatteryUltimate A-series Ultimate A-series Tools and material needed Routing wires Amplifier installation kitConversion Gauge mm2 ToolsFor RCA cable signal input Ultimate A-series Remote terminal REMGround Terminal GND Fan terminalUltimate A-series Phase control on A5, A6 and A7 Input WiringRemote bass level and phase shift control on A5, A6 and A7 Power / Protect lightUltimate A7 Amplifier frontDLS A1 DLS A4DLS A5 DLS A6Crossovers / filters on A7 Highpass filter on front channelsHighpass filter on rear channels Filters on sub ChannelNoise Problems Speaker Polarity CheckWhining Noise Varying with Engine Revolutions Constant Whining NoiseButton out Fuse Pre out 60 a FM1 107,3 Battery Volt Remote Ultimate A1-A2DLS A1 and A2 can be connected in different ways One speaker pair connected in stereoConnection in mono with one subwoofer in bridge mode Two stereo speaker pairs Connected in parallelDLS A1 Button outWiring Examples DLS A3 Ultimate A3DLS A3 can be connected in different ways Stereo with one front and one rear speaker systemMono bridge mode HP-filter setting 30 Hz LP-filter setting 60-80 Hz ButtonOne or more subwoofers DC Feed DLS A3Wiring Examples A4 HP-filter setting 80-100 HzHP-filter setting 30 Hz LP-filter setting 70-80 Hz Button DC Feed DLS A4Ultimate A4 DC-FEED DLS A4 HP-filter not in use LP-filter not in useFM1 107,3 HP-filter not in use LP-filter not in use Button out Pre out RearHP-filter setting 400 Hz Button Own testsWiring Examples A5 Ultimate A5Connection of a front system Stereo and a subwoofer in monoUltimate A6 DC Feed DLS A6 Wiring Examples A6Connection of two 4 ohm subwoofers DC Feed DLS A7 Wiring Examples A7A7 in Bridge Mode Tweeters with active high-pass x-over setting at 4 kHz Front RearSwitch settings in this example Filter settings Filter settings Switch settings in this example HP-filter settingButton HP-filter setting 80 Hz LP-filter setting 400 Hz Wiring Examples A8 Example 1 Speaker wiring with front and rear speakersUltimate A8 Button Out Button outLP-filter setting Filter settings Front HP-filter OFFLP-filter Setting 70-80 Hz Rear HP-filter OFF Subwoofer 2 4 ohmTest speaker connections Reconnect BatteryTest power wiring Specifications A1 to A6 Specifications A7 & A8 Channel 1&2Channel 3&4 Subchannel

A3, A4, A7, A6, A1 specifications

DLS Svenska AB is renowned for its innovative audio solutions, and its A-series speakers, specifically models A1, A5, A6, A7, and A8, underscore this commitment to superior sound quality and cutting-edge technology.

The A1 is the entry-level model, yet it showcases impressive features that set it apart. With a compact design, it is ideal for smaller spaces while still delivering a powerful sound experience. The speaker incorporates advanced driver technology for clear mids and an extended frequency range. It is compatible with various audio inputs, making it a versatile choice for multiple setups, from casual listening to more complex audio systems.

Moving to the A5, this model emphasizes broader soundscapes without sacrificing clarity. It boasts a robust cabinet design, which minimizes resonance and distortion. The A5 features a high-performance woofer and tweeter that work seamlessly to produce a balanced audio profile. Added connectivity options, including Bluetooth, allow for easy streaming from devices, making it convenient for users who value flexibility.

The A6 takes things a step further with enhanced power and performance. Designed for both home and professional use, it offers a more extensive dynamic range and impressive volume levels without compromising on sound quality. The A6 implements proprietary technologies such as phase coherence, ensuring that audio playback is precise and immersive. Its stylish design is also a significant selling point, allowing it to blend seamlessly into any environment.

The A7 is built for audiophiles who demand more from their equipment. With a focus on advanced acoustics, the A7 incorporates a sophisticated crossover design that ensures each frequency range is represented accurately and with depth. It also features high-grade materials in both its components and cabinet construction, resulting in a durable yet aesthetically pleasing product.

Finally, the A8 represents the pinnacle of the A-series lineup. Designed for large spaces or high-fidelity requirements, the A8 delivers extraordinary sound pressure levels and richness in audio. Integrated with advanced DSP technology, it offers tailored sound profiles suitable for different environments. The A8 is engineered for exceptional bass performance, ensuring that every note is not just heard, but felt.

Collectively, the A1, A5, A6, A7, and A8 series by DLS Svenska AB illustrates a commitment to quality, design, and innovation. Each model caters to various needs and preferences, ensuring that there is a perfect match for any audio enthusiast.